package com.atguigu.gulimall.order.listener;

import com.alipay.api.AlipayApiException;
import com.alipay.api.internal.util.AlipaySignature;
import com.atguigu.gulimall.order.config.AlipayTemplate;
import com.atguigu.gulimall.order.service.OrderService;
import com.atguigu.gulimall.order.vo.PayAsyncVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Map;

/**
 * @author tianxinyu
 * @create 2021-01-04 15:53
 */
@RestController
public class OrderPayedListener {
    @Autowired
    OrderService orderService;
    @Autowired
    AlipayTemplate alipayTemplate;

    @PostMapping("/payed/notify")
    public String handleAplipayed(PayAsyncVo vo,HttpServletRequest request) throws AlipayApiException, UnsupportedEncodingException {
        //只要我们找到了支付宝给我们异步的通知，告诉我们订单支付成功。返回success，支付宝就不通知了
//        Map<String,String[]> map = request.getParameterMap();
//        System.out.println("支付宝通知到了。。。数据"+map);
        Map<String, String> params = new HashMap<>();
        Map<String, String[]> requestParams = request.getParameterMap();
        for (String name : requestParams.keySet()) {
            String[] values = requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i]
                        : valueStr + values[i] + ",";
            }
            //乱码解决，这段代码在出现乱码时使用
//             valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
            params.put(name, valueStr);
        }

        boolean signVerified = AlipaySignature.rsaCheckV1(params, alipayTemplate.getAlipay_public_key(),
                alipayTemplate.getCharset(), alipayTemplate.getSign_type()); //调用SDK验证签名

        if(signVerified){
            //签名验证成功
            System.out.println("签名验证成功");
            String result =  orderService.handlePayResult(vo);
            return result;
        }else {
            return "error";
        }
    }






}
